<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #t1{
            border: 1px solid #000;
            border-collapse: collapse;
            border-spacing: 0;
            width: 300px;
            height: 180px;
            margin: 0 auto;
        }
        #t1 td{
            border: 1px solid #000;
        }
        #t2{
            border: 3px solid #000;
            border-collapse: collapse;
            border-spacing: 0;
            width: 300px;
            height: 180px;
            margin: 0 auto;
        }
        #t2 td{
            border: 1px solid #000;
        }
        #t3{
            border: 5px double #000;
            border-collapse: collapse;
            border-spacing: 0;
            /* padding: 1px; */
            width: 300px;
            height: 180px;
            margin: 0 auto;
        }
        #t3 td{
            border: 1px solid #000;
        }
        #t4{
            border: 0px solid #000;
            /* border-collapse: collapse; */
            border-spacing: 10px;
            /* padding: 1px; */
            /* padding: 20px; */
            width: 300px;
            height: 180px;
            margin: 0 auto;
        }
        #t4 td{
            border: 1px solid #000;
        }
        #t5{
            border: 0px solid #000;
            /* border-collapse: collapse; */
            border-spacing: 0px;
            /* padding: 1px; */
            /* padding: 20px; */
            width: 300px;
            height: 180px;
            margin: 0 auto;
            padding: 5px;
        }
        #t5 td{
            border: none;
            border-bottom: 1px solid #000;
        }
        #t6{
            border: 5px solid #5c5c5c;
            /* border-collapse: collapse; */
            border-spacing: 2px;
            /* padding: 1px; */
            padding: 10px;
            width: 300px;
            height: 180px;
            margin: 0 auto;
        }
        #t6 td{
            /* border: 1px solid #000; */
            padding: 5px;
            background-color: rgb(40, 188, 92);
        }
        #t6 tr:last-child>td:last-child{
            background-color: #fff;
        }
    </style>
</head>
<body>
    <table id="t1">
        <caption>细线表格</caption>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
    </table>
    <!--  -->
    <table id="t2">
        <caption>粗框西线</caption>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
    </table>
    <!--  -->
    <table id="t3">
        <caption>双线表格</caption>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
    </table>
    <!--  -->
    <table id="t4">
        <caption>公子哥</caption>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
    </table>
    <!--  -->
    <table id="t5">
        <caption>单线表格</caption>
        <tr>
            <td colspan="3"></td>
        </tr>
        <tr>
            <td colspan="3"></td>
        </tr>
        <tr>
            <td colspan="3"></td>
        </tr>
    </table>
    <!--  -->
    <table id="t6">
        <caption>日历表格</caption>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td></td>
        </tr>
        <tr>
            <td></td>
            <td></td>
            <td id="tdd"></td>
        </tr>
    </table>
</body>
</html>